Table 4a.
Ethanol fermentation profile of E.coli SS1 (#SS1), E.coli BL21, E.coli BW25113 and E. aerogenes HU101 using glucose (20 g/L) as substrate
| *Composition of broth | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Strain | Biomass (OD 600nm) | Glucose (g/L) | Ethanol (g/L) | Hydrogen (mmol) | Organic acids (mg/L) | Ethanol yield (mol/mol) | Hydrogen yield (mol/mol) | |||
| Succinic acid | Lactic acid | Acetic acid | Formic acid | |||||||
| E. coli SS1 | 2.10 ± 0.01 | 11.92 ± 0.1 | 0.90 ± 0.14 | 0.99 ± 0.02 | 11.38 | 8.29 | 3.67 | 8.46 | 0.44 | 0.63 |
| E. coli BL21 | 1.90 ± 0.27 | 16.90 ± 0.1 | 0.79 ± 0.5 | 0.86 ± 0.2 | 8.45 | 13.93 | 5.82 | 9.24 | 0.99 | 1.43 |
| E. coli BW25113 | 1.99 ± 0.02 | 12.36 ± 0.2 | 0.72 ± 0.2 | 1.02 ± 0.02 | 14.56 | 12.47 | 4.86 | 8.53 | 0.37 | 0.67 |
| E. aerogenes HU101 | 2.19 ± 0.02 | 0.80 ± 0.4 | 1.42 ± 0.42 | 0.85 ± 0.03 | 12.41 | 15.96 | 7.89 | 8.51 | 0.23 | 0.23 |
*
Fermentation at 96 h